Removal and replacement procedures 41
IMPORTANT: If any cables in the front panel assembly need replacing, the entire front panel
assembly must be replaced.
10. Remove the four T-10 Torx screws from each side, and then remove the front panel assembly.
To replace the component, reverse the removal procedure.
Flash-backed write cache procedures
Two types of procedures are provided for the FBWC option:
• Removal and replacement of failed components:
o Removing the cache module ("Flash-backed write cache module" on page 41)
o Removing the capacitor pack ("Flash-backed write cache capacitor pack" on page 43)
• Recovery of cached data from a failed server ("Recovering data from the flash-backed write cache" on
page 45)
CAUTION: Do not detach the cable that connects the battery pack or capacitor pack to the cache
module. Detaching the cable causes all data in the cache module to be lost.
Flash-backed write cache module
WARNING: To reduce the risk of personal injury, electric shock, or damage to the equipment,
remove the power cord to remove power from the server. The front panel Power On/Standby
button does not completely shut off system power. Portions of the power supply and some internal
circuitry remain active until AC power is removed.
To remove the component:
CAUTION: The cache module connector does not use the industry-standard DDR3 mini-DIMMs.
Do not use the controller with cache modules designed for other controller models, because the
controller can malfunction and you can lose data. Also, do not transfer this cache module to an
unsupported controller model, because you can lose data.
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